Quantum-mechanical exploration of the properties of the sugar rings |
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Authors: | Hélène Berthod Alberte Pullman |
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Institution: | (1) Institut de Biologie Physico-Chimique, Laboratoire de Biochimie Théorique associé au C.N.R.S., 13, rue P. et M. Curie, F-75005 Paris, France |
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Abstract: | Theab initio SCF method is used for computing the main electronic properties of the ribose unit of the nucleic acids. The present study is devoted to the ribose in the C3 -endo,gg conformation. The properties investigated include the distribution of the electronic charges, the electrostatic molecular potential around the four oxygens of the unit, the hydration and the Na+ binding schemes studied in the supermolecule approximation. The possibilities of through-water binding of the cation to the sugar are also explored. The predictions of the computation in particular with regard to cation binding to the ribose ring are correlated with recent experimental results. |
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Keywords: | C3 -endo ribose" target="_blank">gif" alt="prime" align="BASELINE" BORDER="0">-endo ribose Sugar rings quantum mechanical exploration of " target="_blank">gif" alt="sim" align="MIDDLE" BORDER="0"> |
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